[Chambers]

Try locking the doors and arm the alarm, then unlock it with the key on the driver side. Then try starting it, if that doesn't work right away, try locking it and unlocking it a couple of time before trying to start it. I think I have seen a few threads here of people who had similar problems and they solved it by doing something like that. My car has a problem with the alarm system, sometimes it works on all the doors when you try to open them when they are locked, then most of the time the alarm only sounds if the passenger side door is tripped. It also trips when I try to unlock the pass. door lock with the key, I have to unlock the lock with the key a second time to get the alarm to stop going off, then its fine. Good luck!!